When applyAuthorStyles was still there, `button` was wrong here, because it wouldn't work in all the situations you might imagine. If you have surrounding styles flowing in, you have to be very careful to be specific enough in your selectors to enforce your own styling here, and `button` is as unspecific as it could be. `class="btn"`, for example, is more specific: so if you had, for example, `padding: 0;` here, it wouldn't take effect, because `padding` from `btn` would overpower it. That's what I encountered while fixing the whole thing. Granted, now applyAuthorStyles is gone, but I wanted to set this straight and set a precedent.